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Special Steels


304H || 316H || 317L || 321H || 347H || S31803 || S32750 || S32760 || S31254 || S32550 || 410 ||


We are your one-stop shop for special steels & modified steel grades.

With our special steels we support Customers engaged in several market fields, such as Energy, Aerospace, Oil & Gas, Chemical, Petrochemical, Water Treatment, Pulp & Paper, General Engineering,...

We supply BARS, SHEETS, PLATES, PIPING & TUBING, FASTENERS in various hard to find steels.


1.4948 || 1.4919 / 1.4401 || 1.4438 || 1.4878 || 1.4961 / 1.4550 || 1.4462 || 1.4410 || 1.4501 || 1.4547 || 1.4507 || 1.4006 ||



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347H || UNS S34709 - 1.4550 // 1.4961, AISI 347H, X8CrNiNb16-13, Tp 347H, Type 347H

UNS S34709 - 1.4550,
AISI 347H, Tp 347H, Type 347H

This special steel with carbon value C≥0.04%, is an higher carbon content version of 347 stainless steel, suitable for high tempereature service and high resistance to intergranular corrosion.

Main fields of application:

Energy, Chemical, Petrochemical, Oil&Gas   


Our products in UNS S34709 - 1.4550 // 1.4961, AISI 347H, X8CrNiNb16-13, Tp 347H, Type 347H are:

  • Bars

Main specifications / standards usually required on 347H : ASTM A182, ASTM A479, ASTM A276, ASME SA182, ASME SA479, ASME SA276,...


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347H round bars, 347H drawn bars, 347H rolled bars, 347H forged bars